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This is a China‑made professional balance regulating tool for the Patek Philippe Caliber 324 movement, specifically designed for adjusting the gold inertia weights on the Gyromax® free‑sprung balance. Made of high‑strength alloy steel with precisely machined tips that match the four horseshoe‑shaped weights on the 324 balance, it allows safe rotation of the weights to alter the balance‘s moment of inertia, thereby fine‑tuning the watch’s rate.
Designed for Gyromax® system: Fits the 4‑arm Gyromax® balance of Patek Philippe Caliber 324, with each arm carrying one horseshoe‑shaped 18K gold inertia weight.
Precision‑machined fork: The tool‘s tip is precisely dimensioned to securely engage the adjustment notch of the weight, preventing slipping or damage.
Durable material: Made of solid alloy steel with surface hardening, wear‑resistant and deformation‑resistant for long‑term professional use.
Universal compatibility: Besides Caliber 324, it also works on Caliber 215, 310, 315 and other movements sharing the same Gyromax® system.
Adjustment principle: Rotating the weight shifts its centre of gravity – notch towards the centre speeds up the rate; notch outward slows it down.
Professional value: Free‑sprung balance regulation is a core skill in high‑end watchmaking; this tool offers an affordable yet reliable solution for watchmakers.
| Specification | Details |
|---|---|
| Product Name | Balance Regulating Tool |
| Compatible Movements | Patek Philippe Caliber 324, 315, 310, 215, etc. |
| Balance Type | Gyromax® free‑sprung balance (4 weights) |
| Material | Alloy Steel |
| Finish | Hardened / Anti‑rust |
| Origin | China |
| Packaging | Single piece (no box) |
Q1: Can I use this tool to adjust my watch‘s rate at home?
A: Strongly not recommended for amateurs. Balance adjustment requires solid theoretical knowledge and years of hands‑on experience. Improper operation can easily deform the weights, unbalance the balance wheel, or damage the hairspring, leading to costly repairs. Leave this task to a qualified professional watchmaker.
Q2: Besides Caliber 324, which other movements can this tool be used on?
A: It also works on Patek Philippe Calibers 215, 310, 315 and other movements with the same Gyromax® 4‑weight balance. For other brands (e.g., Rolex, Omega), the weight dimensions may differ; do not mix.
Q3: What if the weight won‘t turn?
A: First, ensure the tool fork is fully seated in the weight’s adjustment notch. If it still won‘t turn, the weight may be stuck due to oil residue or corrosion. Apply a tiny drop of petroleum ether to clean; never force it. If still stuck, send the watch for professional service.
Q4: After adjustment, the rate becomes worse. What should I do?
A: Possible causes: ① Weights were not adjusted in pairs, breaking dynamic poise; ② The adjustment angle was too large; ③ Other issues exist (e.g., worn balance jewels, magnetised hairspring). Use a timing machine to diagnose thoroughly. If necessary, reset the weights to their original positions and start over.
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